Chief Executive Carrie Lam today expressed sadness over the death of Traffic Branch Senior Police Constable Lum Hoi-wan.

The 51-year-old officer was handling a traffic accident at 5.20am when he was struck by a vehicle.

He was taken to Queen Elizabeth Hospital but was certified dead about 6am.

Mrs Lam said: "Being professional and brave, Hong Kong police officers always serve people with commitment and zeal despite the danger involved in their duties.

"I am deeply saddened by the passing of Mr Lum while carrying out duty this morning and offer my deepest condolences to his family.

"The Civil Service Bureau and the Police will make every effort to support the family."

Chief Secretary Matthew Cheung, Secretary for Security John Lee, Secretary for the Civil Service Joshua Law and Commissioner of Police Stephen Lo also extended their condolences.